It's my understanding that the Hawaiian ILEC is now owned by Cincinnati Bell, which is also a unique historical artifact, as it was its own independent corporation/operating entity in the region of Cincinnati during the era of the pre-1984 Bell system.
Somewhat like how GTE was independent in other places in the country.
Some of the Hawaii ILEC structures I have seen photos of in other non-fire-affected places and other islands have a resemblance to designs that were built by BCTel, the ILEC in British Columbia, at the time when GTE was a shareholder in BCTel.